Workshop Manual

COMPILER TECO/ATL
REG. CODE
1-5302-509
MODEL N°
50778
DATE OF ISSUE
10.06.99
REVISION 00
ENDORSED
DATE
10.06.99
75
XIIIELECTRICAL CIRCUIT
Marelli alternator, type AA 125 R 14V 45A
Specifications:
Voltage rating = 14V
Rated current = 45A
Maximum speed = 14000 r/min
Maximum peak speed (for 15 sec.) = 15000 r/min
Bearing on control side = 6203-2Z
Bearing on collector side = 6201-2Z/C3
Voltage governor = RTT 119 A
Clockwise rotation
Note: Lubricate the bearings with grease suitable for high
temperatures.
Tighten nut 1 to a 60 Nm torque.
Characteristic curve of alternator Marelli AA 125 R 14V 45A
The curves were measured with an electronic voltage governor after
a 25°C heat stabilizing process; test voltage 13,5 V.
P1 = Power in KW
I = Current in Amperes
hh
hh
h = Alternator efficiency
Note: The r/min rates in the table multipled by 1000 are those of the
alternator.
Engine r/min / alternator r/min ratio with 88 mm diameter
driving pulley = 1:1.3; with 108 diam. driving pulley = 1:1.6.
Voltage regulator connection
167
168
169 170
AETSA
SAPRISA
NICSA
~
R
+
LE
W
Wire
colours
Yellow
Red
Red
Green
Brown
Orange
Tab dimensions
DUCATI
G
R
B
L
C
W
Width
6.35
9.50
9.50
4.75
6.25
6.35
Thickness
0.8
1.2
1.2
0.5
0.8
0.8